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Komatsu Manuals
Excavators
PC240LC
Operation & maintenance manual
Komatsu PC240LC Operation & Maintenance Manual
Hydraulic excavator
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
4.4 Machine Serial Plate.
1 Foreword
2 Safety Information
3 Introduction
4 Location of Plates, Table to Enter Serial No. and Distributor
Table of Contents
Safety
6 General Precautions
7 Precautions During Operation
Before Starting Engine
Operating Machine
Transportation
Battery
Towing
Bucket with Hook
8 Precautions for Maintenance
Before Carrying out Maintenance
During Maintenance
9 Position for Attaching Safety Labels
Operation
10 General View
General View of Machine
General View of Controls and Gauges
11 Explanation of Components
Machine Monitor
Meter
Switches
Control Levers, Pedals
Ceiling Window
Front Window
Door Lock
Cap, Cover with Lock
Ashtray
Heater
Air Conditioner
Fuse
Fusible Link
Controllers
Tool Box
Refuelling Pump
Handling the Accumulator
12 Operation
Check before Starting Engine
Starting Engine
Operations and Checks after Starting Engine
Moving Machine off
Steering Machine
Stopping Machine
Swinging
Operation of Work Equipment
Handling Active Mode
Working Mode Selection
Prohibitions for Operation
Precaution for Operation
Precaution When Travelling up or down Hills
How to Escape from Mud
Work Possible Using Hydraulic Excavator
Replacement and Inversion of Bucket
Parking the Machine
Check after Finishing Work
Stopping Engine
Check after Stopping Engine
Locking
Overload Warning Device
13 Transportation
Loading, Unloading Work
Precautions for Loading
Precautions for Transportation
Lifting the Machine
14 Cold Weather Operation
Precaution for Low Temperature
Precautions after Completion of Work
After Cold Weather
15 Long-Term Storage
Before Storage
During Storage
After Storage
Starting Machine after Long-Term Storage
16 Troubleshooting
Phenomena that Are Not Failures
Method of Towing Machine
Using Method for Light-Weight Towing Hole
Troubleshooting 16.1 Phenomena that Are Not Failures
Precautions on Particular Jobsites
If Battery Is Discharged
Other Trouble
Maintenance
17 Guides to Maintenance
18 Outlines of Service
Outline of Oil, Fuel, Coolant
Outline of Electric System
Outline of Hydraulic System
19 Wear Parts List
20 Use of Fuel, Coolant and Lubricants According to Ambient Temperature
21 Standard Tightening Torques for Bolts and Nuts
Introduction of Necessary Tools
Torque List
22 Periodic Replacement of Safety Critical Parts
23 Maintenance Schedule Chart
Table of Contents
Maintenance Interval When Using Hydraulic Breaker
24 Service Procedure
Initial 250 Hours Service
When Required
Check before Staring
Every 100 Hours Service
Boom Foot Pin (2 Points)
Boom Cylinder Rod End (2 Points)
Arm Cylinder Foot Pin (1 Point)
Boom-Arm Coupling Pin (1 Point)
Arm Cylinder Rod End (1 Point)
Bucket Cylinder Foot Pin (1 Point)
Arm-Link Coupling Pin (1 Point)
Arm-Bucket Coupling Pin (1 Point)
Link Coupling Pin (2 Point)
Bucket Cylinder Rod End (1 Point)
Bucket-Link Coupling Pin (2 Points)
Check Oil Level in Swing Machinery Case, Add Oil
Drain Water and Sediment from Fuel Tank
Clean Fresh Air Intake Heater Filter
Every 250 Hours Service
Check Oil Level in Final Drive Case, Add Oil
Check Level of Battery Electrolyte
Lubricate Swing Circle (2 Points)
Check Air Conditioner Compressor Belt Tension Adjust
Every 500 Hours Service
Replace Fuel Cartridges
Check Swing Pinion Grease Level, Add Grease
Change Oil in Engine Oil Pan, Replace Engine Oil Filter Cartridge
Every 1000 Hours Service
Every 2000 Hours Service
Every 4000 Hours Service
Every 5000 Hours Service
Specifications
25 Machine Specifications
Explanation of Lifting Capacity Chart
Options and Attachments
26 General Precautions
Precautions When Installing Attachments
27 Handling Bucket with Hook
Checking for Damage to Bucket with Hook
Prohibited Operations
Precautions During Operation
28 Machine Ready for Attachments
Explanation of Components
Hydraulic Circuit
Attachment Mounting / Dismounting Procedure
Operation
Long-Term Storage
Specifications
First Attachment with Clam-Shell Option
First and Second Attachment
29 Introduction of Attachments
Specification, Use
Selection of Track Shoes
Selection of Bucket Teeth
Handling Trapezoidal Bucket
Handling Clamshell Bucket
30 Extending Machine Service Lift
Hydraulic Breaker
Power Ripper
Fork Grab
Grapple Bucket
Scrap Grapple
Crusher & Cutter
Hydraulic Pile Driver
Hydraulic Excavator with Multipurpose Crane
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Operation &
Maintenance Manual
PC210, PC210LC
PC240LC, PC240NLC
HYDRAULIC EXCAVATOR
SERIAL NUMBER
WARNING
Unsafe use of this machine may cause serious injury or
death. Operators and maintenance personnel must read this
manual before operating or maintaining this machine. This
manual should be kept inside the cab for reference and
periodically reviewed by all personel who will come into
contact with the machine.
PC210-6K
- K32000
PC210LC-6K - K32000
PC240LC-6K - K32000
PC240NLC-6K - K32000
EEAM006003
-6K
and up
and up
and up
and up
-6K
Table of
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4.4 Machine Serial Plate.
9
Table of Contents
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Table of Contents
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Summarization of Contents
1. Foreword
2. Safety Information
2.1 Safety Messages
Explains the meaning of different warning triangles and notices used in safety labels.
2.2 Noise
Specifies noise level values for operator and ambient noise.
2.3 Vibration
States vibration acceleration values for operator's arms and body.
3. Introduction
3.1 Intended Use
Lists the primary applications for which the hydraulic excavator is designed.
3.2 Features
Highlights the key characteristics and advanced systems of the hydraulic excavator.
3.3 Breaking In Your New Machine
Provides guidelines for the initial 100-hour break-in period to ensure optimal performance.
4. Location of Plates, Serial Numbers, and Distributor
4.1 Machine Serial No. Plate Position
Specifies the location of the machine serial number plate on the operator's cab.
4.2 Engine Serial No. Plate Position
Details the location of the engine serial number plate on the engine cylinder head cover.
4.3 Table to Enter Serial No. and Distributor
Provides a table for recording serial numbers and distributor information.
6. General Precautions
Safety Rules, Features, and Personal Protective Items
Covers safety rules, features, and personal protective items.
Modification, Locking, and Mounting/Dismounting Safety
Warns against modifications, emphasizes securing the lock lever, and safe mounting/dismounting.
Fire Prevention and High Temperature Handling
Outlines precautions for fire prevention and safe handling of hot engine coolant and oil.
Asbestos, Crushing, and Fire Safety
Details asbestos hazard prevention, crushing prevention, and fire extinguisher/first aid kit importance.
Falling Object Protection
Advises on installing protective guards to prevent injury from falling or flying objects.
Attachment, Accumulator, and Emergency Safety
Covers safety for attachments, accumulators, emergency exits, beacons, and electromagnetic interference.
7. Precautions During Operation
7.1 Before Starting Engine
Details safety checks and considerations for the worksite, fire prevention, and cab organization before starting the engine.
7.2 Operating Machine
Covers safe operating procedures, including starting, direction checks, area verification, travelling, slopes, prohibited operations, visibility, snow, loose ground, and parking.
7.3 Transportation Safety
Emphasizes caution during loading, unloading, and shipping operations.
7.4 Battery Safety
Covers battery hazards and safe procedures for starting with booster cables.
7.5 Towing Procedures
Explains correct methods and precautions for towing a disabled machine.
7.6 Bucket with Hook Operations
Details precautions for safe operation when using a bucket with a hook.
8. Precautions for Maintenance
8.1 Before Carrying Out Maintenance
Covers safety tags, proper tools, and periodic replacement of safety-critical parts before maintenance.
8.2 During Maintenance
Details safety precautions for personnel, working under the machine, keeping it clean, and handling batteries and high-pressure systems.
9. Position for Attaching Safety Labels
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